Linked from
The 27 pages that link to Gastrulation, each with the reason it gives.
NotochordRelated: Gastrulation positions the cells that will form the notochord.
Germ layerRelated: This process creates the layered organization that defines primary germ layers.
PlanulaRelated: Gastrulation produces the layered organization present in a planula.
ProtostomeRelated: Blastopore fate is observed during this stage of protostome development.